7087825121 has 8 divisors (see below), whose sum is σ = 7634098920. Its totient is φ = 6541702272.

The previous prime is 7087825093. The next prime is 7087825141. The reversal of 7087825121 is 1215287807.

It can be written as a sum of positive squares in 4 ways, for example, as 300536896 + 6787288225 = 17336^2 + 82385^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7087825121 - 2⁶ = 7087825057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7087825141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71525 + ... + 138893.

It is an arithmetic number, because the mean of its divisors is an integer number (954262365).

Almost surely, 2^7087825121 is an apocalyptic number.

It is an amenable number.

7087825121 is a deficient number, since it is larger than the sum of its proper divisors (546273799).

7087825121 is a wasteful number, since it uses less digits than its factorization.

7087825121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75475.

The product of its (nonzero) digits is 62720, while the sum is 41.

The square root of 7087825121 is about 84189.2221189862. Note that the first 3 decimals coincide. The cubic root of 7087825121 is about 1920.8981186850.

The spelling of 7087825121 in words is "seven billion, eighty-seven million, eight hundred twenty-five thousand, one hundred twenty-one".